Wire-bag-making machine



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24 13 I4 15 I6 17 1a 19 20 2 22 28 A s x x L a n. a a 1! "1' 1 vww wiwm J70 em r'J' Patented Dec. 31, 1929 UNITED STATES PATENT OFFICE YVES G-U'YON AND RENE HENRI CHARLES MARTY, OF PARIS, FRANCE WIRE-BAG-MAKING MACHINE Application filed August 31, 1927, Serial No. 216,724, and in France September 2, 1926.

ject was to obtain a bag, the sides of which CAD the machine.

are all in one piece and the bottom also in one piece with the sides so that all the free ends of the wires are at the opening end of the bag.

The present invention also comprises an improvement wherein the free ends of the said wires, or of any other wire of a bag, are terminated with small balls of metal obtained by fusion by means of a blowpipe, electrical soldering, immersion in a suitable bath or any other equivalent means, so as not to present any dangerous or inconvenient prickle.

In the machine described in the said Patent 1,581,965 the successive pinions whose 5 wires are held together to form a tubular fabric are arranged in a closed circuit; the latter may be formed in particular by two parallel planes joined at their ends. The present improvement concerns a simplification of the parts with a view to gather on one line of operation the pinions working in a closed circuit, the bag is thus woven completely in a fiat condition, the two sheets of the fabric touching one another when leaving Said machine is characterized on the one hand by pairs of half pinions which, in the position corresponding with the formation of the twists, leaving aside what occurs at the ends of the machine, are oftwo sorts, the pinions of one sort being every other pinion and cooperating to form only oneof the two distinct sheets, the movements of the slides being such that the twists always occur only between two half pinions of the. same sort, on the other hand by rotations of all or a part of the half pinions in their recesses at the time when, between two twists, two half pinions of difl'erent sorts are located one opposite the other, the rotations being such that the two sheets remain super posed one against the other, without their wires being entangled.

The present invention also concerns a detail of the machine applicable to'all the forms described in Patent 1,581,965 or in the present application, in which the bottom of the bag has no free wire end, characterized by the fact that one of the two slides operating opposite one another pivots, at the beginning of the making of a bag, about an axis and is brought to such a position that the half segments it contains come into extension of the half segments of the other slide, each wire, the two halves of which are held in two different half segments according to the nature of the bottom, being then able to be threaded owing to a method of feed that pushes it into the single passage formed by the two half segments placed end to end.

In the accompanying drawings:

1 Figures 1 to 8 show diagrammatically in plan the slides and segments in position at the beginning of the manufacture of a bag;

Figure 9 shows, in section along line 99 of Figure 1, the slides in position at the same time;

Figure 10 is a similar section showing the same slides in another position at the beginning of the manufacture of a bag;

Figures 11, 12, 13 and 14 show in plan the slides and segments during the initial phases of the manufacture.

In Figure 1 the numerals 1 and'2 designate the two slides of the machine; 3, 1, 5, 6, 7 8, 9, 10, 11, 12 the half pinions contained in the slide 1; 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 the half pinions contained in the slide 2 at the time when the twists have just been efi'ected. The half pinions 313, 515, 7-17, 919, 1121 on the one hand, 114:, 6-16, 818,

-20 on the other hand weave respectively each of the above mentioned sheets. The slides 1 and 2 moving in the direction of the arrow of Figure 1 assume the position of Figure 2, the half pinion 3 having come opposite 14; 4 opposite 12 opposite a half segment 23 containing no wire, 13 opposite a similar segment 24. At that time, under the action of the racks contained in the slides, the half pinions effect a half revolution in the direction shown by the arrows so as to avoid, as the operation of the slides continues, the passing of the wire of pinion 14 over the wire of pinion 3, the wire of pinion 4 beneath that of pinion 15 which would cause entanglement of the two sheets; the half pinion 12 turns by a half revolution with the pinion 23, the horn 25 carried by the half segment 23 causing the wire traversing the half pinion 12 to assume the position shown in Figure 3. Likewise the pinion 14 turns by a half revolution with the pinion 24 carrying a similar horn 26.

The pinions being in the position of Figure 3 after the aforesaid rotations, the slides 1 and 2 move again in the direction of the arrows and assume the positions of Figure 4, the half segments 23 and. 24 coming opposite the similar segments 27 and 28 also provided with horns 29 and 30, the wires being at that time suitably placed, the twists occur under the action of the racks which cause the half pinions to effect one revolution and a half to bring them to the position of Figure 5. The slides then moving in the direction of the arrows, assume the position of Figure 6, the half pinion 13 coming opposite the half segment 27, the half pinion 3 opposite the pinion 14, etc. Except the pinions 13 and 12 that effect a full revolution, the half pinions effect a half revolution in the direction of the arrows in order that the two sheets avoid one another, and assume the position of Figure 7 The slides then move in the direction of the arrows and assume the position of Figure 8, the twists being thereafter effected, the position of Figure 1 is resumed and the cycle of operations recommences.

Besides the device above described and illustrated in the drawings, the invention comprises, for a netting with a triple twist or an odd number of half twists, another mode of operation, only the operating members of the racks and slides being different.

After the position corresponding with Figure 2, the half pinions 3, 14, 5,16,7, 18 11, 12 turn by a half revolution in the direction of the arrows of Figure 2; the half pinions 415,'617 etc. 21 do not turn; the terminal halfpinions 12 and 13 turn by a half revolution with the wireless segments. The arrangement of the segments is then the same as in Figure 6. The slides then continue their movement in the direction of the arrows of Figure 1 and the segments come to the same relative position as in Figure 5.

The twists occur, for a triple twist netting, at every other revolution instead of one and a half. The arrangement of the segments and the shape of the wires are then the same as in Figure 5. The movement is terminated by a secondportion during which all the members pass again successively by the same positions, but in the reverse order.

The machine according to the invention permits also of making a double twist netting or one with an even number of half twist-s. Just as for one with an odd number of half twists, two cases are to be considered according as the operation by which the two sheets are separated consistsin causing the pairs of half pinions to turn by a half revolution onein one direction and the other in the other direction, or consists in causing half of the pairs of segments to turn by a full revolution and not moving the others. The movements of the slides are the same as for triple twist, only the number of half twists being changed. For a double twist netting the number is one revolution in the first case and one and a half revolutions in the second case.

Figures 9, 10, 11, 12, 13, 14 relate to the beginning of the manufacture of a bag and the formation of one of the embodiments of the bottom on which the invention bears more particularly. 1 and 2 show in section the two slid-es, 4 and 14 being the half segments to which are keyed the half pinions 31 and 32 meshing with the racks 33 and 34. At the beginning of the manufacture, the slide 1, placed against the slide 2 as in Figure 9, pivots, owing to the toothed wheel 35 and sector 36, about the axis 37 so as to assume the position of Figure 10, the segments 4 and 14 being then in extension of one another. The wire 38 urged by the feed discs 39 and 40, can then be introduced into the single conduit formed by the two half segments 14 and 4 placed end to end. After the slide 1 is thrown down, the wires assume the position of Figure 11, the same wires being threaded at both ends into the pairs of segments 3-13, 4-14, etc. The slides 1 and 2 moving in the direction of the arrow assume the position of Figure 12; the half pinions turn by one revolution in the direction of the arrows ,so as to assume the position of Figure 13, and return thereafter (as in Figure 14) to the position of Figure 11; in that manner the hinge thus formed enables the two sheets to separate freely without the wires of the bottom being twisted.

WVhat we claim is 2- In a machine for making wire netting bags in a closed circuit, relatively movable slides, a plurality of groups of pairs of half pinions mounted in said slides, the half pinions of one group being interspaced with relation to the half pinions of the other group, and the half pinions of the respective groups Operating to form two distinct wire fabric sheets, the slides being moved to cause the twists to occur only between two half pinions of the same group, and means for causing rotation of the half pinions at the moment between twists when two half pinions of difierent groups are located one opposite the other whereby the two sheets remain superposed one over the other preventing tangling of the wires.

In testimony whereof we aflix our signatures.

YVES GUYON. RENE HENRI CHARLES MARTY. 

